Question

public class QuestionsOptionsAdapterMultipleSelectionLV extends BaseAdapter {
    Context context;
    ArrayList<QuestionOptionsModel> items;
    String which;
    CollegepondSandbox cs;
    ArrayList<String> arr;
    boolean isTouch = false;
    int positionselected;
    QuestionsOptionsAdapterMultipleSelectionLV adapter1;



 public QuestionsOptionsAdapterMultipleSelectionLV(Context context, 
        ArrayList<QuestionOptionsModel> items) {
        this.context = context;
        this.items = items;
        this.which = which;
        this.arr = arr;
        cs = new CollegepondSandbox();


    }


    @Override
    public int getCount() {
        // TODO Auto-generated method stub
        return items.size();
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return items.get(position);
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
       // positionselected =items.indexOf(items.get(position));
        return items.indexOf(items.get(position));
    }

    @Override
    public int getViewTypeCount() {
        return getCount();
    }

    @Override
    public int getItemViewType(int position) {
        return position;
    }

    @Override
    public View getView(final int position, View convertView, ViewGroup 
    parent) {
            if(convertView==null){
        LayoutInflater inflater = (LayoutInflater) 
    context.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);

        convertView = inflater.inflate(R.layout.custom_options_multiple, 
     null);

        WebView tvOptiontext;
        ImageView ivOption;

        LinearLayout llOptionsMultiple;

        ivOption = (ImageView) convertView.findViewById(R.id.cbOption);
        tvOptiontext = (WebView) convertView.findViewById(R.id.tvOptiontext);
        llOptionsMultiple = (LinearLayout) convertView.findViewById(R.id.llOptionsMultiple);
        tvOptiontext.loadData(items.get(position).QOption, "text/html", "utf-8");

        return convertView;
        }
       }

我不知道为什么在打开文件后测试的数组值之后会打印这些零。我想打印数组本身而不是其他数字。我试过搞乱MAX变量，但我不知道该怎么做。

Answer 1

main（）中的for循环遍历数组的长度，即100个元素。您未覆盖的元素默认为0.

要解决此问题，请将数组作为参数传递给inputData（），并让它返回它放入数组的元素数量：

public static int inputData(int[] input) {
  // ...
  input[count] = whatever;
  // ...
  return count;
}

Answer 2

从int到Integer重构数组（0 - ＆gt; null）

在打印前添加此项，它将从Integer（非int）数组中删除空值。（如果int将有零问题）

int count = 0;

for (Integer i : array) {
    if (i != null) {
        count++;
    }
}

Integer[] newArray = new Integer[count];

int index = 0;

for (Integer i : array) {
    if (i != null) {
        newArray[index++] = i;
    }
}

我的数组继续打印出零，我不知道为什么

2 个答案: